fidl_test_powerelementrunner/

fidl_test_powerelementrunner.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_test_powerelementrunner_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ControlStartRequest {
    pub element_name: String,
    pub initial_current_level: u8,
    pub element_runner: fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for ControlStartRequest {}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ControlMarker;

impl fidl::endpoints::ProtocolMarker for ControlMarker {
    type Proxy = ControlProxy;
    type RequestStream = ControlRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ControlSynchronousProxy;

    const DEBUG_NAME: &'static str = "test.powerelementrunner.Control";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ControlMarker {}
pub type ControlStartResult = Result<(), StartPowerElementError>;

pub trait ControlProxyInterface: Send + Sync {
    type StartResponseFut: std::future::Future<Output = Result<ControlStartResult, fidl::Error>>
        + Send;
    fn r#start(
        &self,
        element_name: &str,
        initial_current_level: u8,
        element_runner: fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
    ) -> Self::StartResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ControlSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ControlSynchronousProxy {
    type Proxy = ControlProxy;
    type Protocol = ControlMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl ControlSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<ControlEvent, fidl::Error> {
        ControlEvent::decode(self.client.wait_for_event::<ControlMarker>(deadline)?)
    }

    pub fn r#start(
        &self,
        mut element_name: &str,
        mut initial_current_level: u8,
        mut element_runner: fidl::endpoints::ServerEnd<
            fidl_fuchsia_power_broker::ElementRunnerMarker,
        >,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<ControlStartResult, fidl::Error> {
        let _response =
            self.client
                .send_query::<ControlStartRequest, fidl::encoding::FlexibleResultType<
                    fidl::encoding::EmptyStruct,
                    StartPowerElementError,
                >, ControlMarker>(
                    (element_name, initial_current_level, element_runner),
                    0x3e14e93b8fd19ea6,
                    fidl::encoding::DynamicFlags::FLEXIBLE,
                    ___deadline,
                )?
                .into_result::<ControlMarker>("start")?;
        Ok(_response.map(|x| x))
    }
}

#[cfg(target_os = "fuchsia")]
impl From<ControlSynchronousProxy> for zx::NullableHandle {
    fn from(value: ControlSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for ControlSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for ControlSynchronousProxy {
    type Protocol = ControlMarker;

    fn from_client(value: fidl::endpoints::ClientEnd<ControlMarker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct ControlProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for ControlProxy {
    type Protocol = ControlMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl ControlProxy {
    /// Create a new Proxy for test.powerelementrunner/Control.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> ControlEventStream {
        ControlEventStream { event_receiver: self.client.take_event_receiver() }
    }

    pub fn r#start(
        &self,
        mut element_name: &str,
        mut initial_current_level: u8,
        mut element_runner: fidl::endpoints::ServerEnd<
            fidl_fuchsia_power_broker::ElementRunnerMarker,
        >,
    ) -> fidl::client::QueryResponseFut<
        ControlStartResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ControlProxyInterface::r#start(self, element_name, initial_current_level, element_runner)
    }
}

impl ControlProxyInterface for ControlProxy {
    type StartResponseFut = fidl::client::QueryResponseFut<
        ControlStartResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#start(
        &self,
        mut element_name: &str,
        mut initial_current_level: u8,
        mut element_runner: fidl::endpoints::ServerEnd<
            fidl_fuchsia_power_broker::ElementRunnerMarker,
        >,
    ) -> Self::StartResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<ControlStartResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::FlexibleResultType<
                    fidl::encoding::EmptyStruct,
                    StartPowerElementError,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x3e14e93b8fd19ea6,
            >(_buf?)?
            .into_result::<ControlMarker>("start")?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<ControlStartRequest, ControlStartResult>(
            (element_name, initial_current_level, element_runner),
            0x3e14e93b8fd19ea6,
            fidl::encoding::DynamicFlags::FLEXIBLE,
            _decode,
        )
    }
}

pub struct ControlEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for ControlEventStream {}

impl futures::stream::FusedStream for ControlEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for ControlEventStream {
    type Item = Result<ControlEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(ControlEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ControlEvent {
    #[non_exhaustive]
    _UnknownEvent {
        /// Ordinal of the event that was sent.
        ordinal: u64,
    },
}

impl ControlEvent {
    /// Decodes a message buffer as a [`ControlEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ControlEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ if tx_header.dynamic_flags().contains(fidl::encoding::DynamicFlags::FLEXIBLE) => {
                Ok(ControlEvent::_UnknownEvent { ordinal: tx_header.ordinal })
            }
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for test.powerelementrunner/Control.
pub struct ControlRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for ControlRequestStream {}

impl futures::stream::FusedStream for ControlRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for ControlRequestStream {
    type Protocol = ControlMarker;
    type ControlHandle = ControlControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        ControlControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for ControlRequestStream {
    type Item = Result<ControlRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled ControlRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x3e14e93b8fd19ea6 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ControlStartRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ControlStartRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ControlControlHandle { inner: this.inner.clone() };
                        Ok(ControlRequest::Start {
                            element_name: req.element_name,
                            initial_current_level: req.initial_current_level,
                            element_runner: req.element_runner,

                            responder: ControlStartResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ if header.tx_id == 0
                        && header
                            .dynamic_flags()
                            .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        Ok(ControlRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ControlControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::OneWay,
                        })
                    }
                    _ if header
                        .dynamic_flags()
                        .contains(fidl::encoding::DynamicFlags::FLEXIBLE) =>
                    {
                        this.inner.send_framework_err(
                            fidl::encoding::FrameworkErr::UnknownMethod,
                            header.tx_id,
                            header.ordinal,
                            header.dynamic_flags(),
                            (bytes, handles),
                        )?;
                        Ok(ControlRequest::_UnknownMethod {
                            ordinal: header.ordinal,
                            control_handle: ControlControlHandle { inner: this.inner.clone() },
                            method_type: fidl::MethodType::TwoWay,
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ControlMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

#[derive(Debug)]
pub enum ControlRequest {
    Start {
        element_name: String,
        initial_current_level: u8,
        element_runner: fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
        responder: ControlStartResponder,
    },
    /// An interaction was received which does not match any known method.
    #[non_exhaustive]
    _UnknownMethod {
        /// Ordinal of the method that was called.
        ordinal: u64,
        control_handle: ControlControlHandle,
        method_type: fidl::MethodType,
    },
}

impl ControlRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_start(
        self,
    ) -> Option<(
        String,
        u8,
        fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
        ControlStartResponder,
    )> {
        if let ControlRequest::Start {
            element_name,
            initial_current_level,
            element_runner,
            responder,
        } = self
        {
            Some((element_name, initial_current_level, element_runner, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ControlRequest::Start { .. } => "start",
            ControlRequest::_UnknownMethod { method_type: fidl::MethodType::OneWay, .. } => {
                "unknown one-way method"
            }
            ControlRequest::_UnknownMethod { method_type: fidl::MethodType::TwoWay, .. } => {
                "unknown two-way method"
            }
        }
    }
}

#[derive(Debug, Clone)]
pub struct ControlControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl ControlControlHandle {
    pub fn shutdown_with_epitaph(&self, status: impl Into<fidl::Epitaph>) {
        self.inner.shutdown_with_epitaph(status.into())
    }
}

impl fidl::endpoints::ControlHandle for ControlControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: fidl::Epitaph) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl ControlControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ControlStartResponder {
    control_handle: std::mem::ManuallyDrop<ControlControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ControlControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ControlStartResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ControlStartResponder {
    type ControlHandle = ControlControlHandle;

    fn control_handle(&self) -> &ControlControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ControlStartResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut result: Result<(), StartPowerElementError>) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut result: Result<(), StartPowerElementError>,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(result);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut result: Result<(), StartPowerElementError>) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::FlexibleResultType<
            fidl::encoding::EmptyStruct,
            StartPowerElementError,
        >>(
            fidl::encoding::FlexibleResult::new(result),
            self.tx_id,
            0x3e14e93b8fd19ea6,
            fidl::encoding::DynamicFlags::FLEXIBLE,
        )
    }
}

mod internal {
    use super::*;

    impl fidl::encoding::ResourceTypeMarker for ControlStartRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ControlStartRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
    }

    unsafe impl
        fidl::encoding::Encode<ControlStartRequest, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut ControlStartRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlStartRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                ControlStartRequest,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (
                    <fidl::encoding::BoundedString<64> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.element_name,
                    ),
                    <u8 as fidl::encoding::ValueTypeMarker>::borrow(&self.initial_current_level),
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.element_runner,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<
                fidl::encoding::BoundedString<64>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        T1: fidl::encoding::Encode<u8, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T2: fidl::encoding::Encode<
                fidl::encoding::Endpoint<
                    fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    > fidl::encoding::Encode<ControlStartRequest, fidl::encoding::DefaultFuchsiaResourceDialect>
        for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ControlStartRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(16);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            self.2.encode(encoder, offset + 20, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ControlStartRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                element_name: fidl::new_empty!(
                    fidl::encoding::BoundedString<64>,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                initial_current_level: fidl::new_empty!(
                    u8,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                element_runner: fidl::new_empty!(
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(16) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffff00u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 16 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                fidl::encoding::BoundedString<64>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.element_name,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                u8,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.initial_current_level,
                decoder,
                offset + 16,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Endpoint<
                    fidl::endpoints::ServerEnd<fidl_fuchsia_power_broker::ElementRunnerMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.element_runner,
                decoder,
                offset + 20,
                _depth
            )?;
            Ok(())
        }
    }
}